uncountable a situation in which harm, death, damage, or destruction is possibleThe notice said ‘Danger! Keep Out!’
in danger: The President was in no danger at any time.
be in great/grave danger: You must leave immediately. You’re in great danger here.
put someone/someone’s life in danger: His actions put the child’s life in danger.
be out of danger: All three children are now reported to be out of danger.
danger from: danger from exposure to radiation
face danger: This man had faced danger and death without flinching.